[Freeswitch-users] RFC2833 and beeps

[Boris Kovalenko]

Thank You, Dmitry!

> This is called talkoff and there are countermeasures in hardware like 
> Linksys PAP2T/SPA8000. DTMF mode can be set to 'Strict', and Strict 
> Holdoff TIme to 80-90.
> After that DTMF will not be triggered by voice, but inband digits 
> muting to convert to RFC2833 will work less reliable, so there can be 
> DTMF artifacts as in our case.
>
> 2011/4/30 Boris Kovalenko <boris at tagnet.ru <mailto:boris at tagnet.ru>>
>
>     Hello!
>
>         My network configuration:
>     Linksys SPA8000 -> FS -> Cisco 5350 -> PSTN
>     FS: FreeSWITCH Version 1.0.head (git-1c95ad9 2011-01-20 22-43-50
>     -0300)
>     Sometimes, when an user (female) on the Linksys speaks, on the
>     other end
>     (PSTN) there are "beeps" like DTMF. After googling I found that this
>     problem is reproducable on some types of hardware where the female
>     russian voice is incorretly recognized as DTMF. So may I do  some
>     workaround with FS? For example to disable RFC2833 on Linksys and use
>     start_dtmf before bridge?
>
>     --
>     С уважением,
>       Борис Коваленко
>       ЗАО "Тагнет"
>       тел. +7 (3435) 230001
>       факс +7 (3435) 230005
>
>
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>
>
>
> -- 
> Best regards,
>
> Dmitry Sytchev,
> IT Engineer
>
>
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-- 
Regards,
Boris


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